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12540411 = 3213107183
BaseRepresentation
bin101111110101…
…100111111011
3212121010012200
4233311213323
511202243121
61124441243
7211406652
oct57654773
925533180
1012540411
117095884
124249223
1327a0c80
141946199
15117aa26
hexbf59fb

12540411 has 12 divisors (see below), whose sum is σ = 19507488. Its totient is φ = 7717104.

The previous prime is 12540403. The next prime is 12540413. The reversal of 12540411 is 11404521.

12540411 is a `hidden beast` number, since 1 + 254 + 0 + 411 = 666.

12540411 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12540411 - 23 = 12540403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12540413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53475 + ... + 53708.

It is an arithmetic number, because the mean of its divisors is an integer number (1625624).

Almost surely, 212540411 is an apocalyptic number.

12540411 is a deficient number, since it is larger than the sum of its proper divisors (6967077).

12540411 is a wasteful number, since it uses less digits than its factorization.

12540411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107202 (or 107199 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 12540411 is about 3541.2442728510. The cubic root of 12540411 is about 232.3292676498.

Adding to 12540411 its reverse (11404521), we get a palindrome (23944932).

The spelling of 12540411 in words is "twelve million, five hundred forty thousand, four hundred eleven".

Divisors: 1 3 9 13 39 117 107183 321549 964647 1393379 4180137 12540411